Astronomers are able to identify chemicals in distant space with the use of spectral analysis. This breaks the light apart into a spectrum and find either emission lines or absorption lines and identifies which elements are present.
Astronomers can determine the composition of a distant object by analyzing its spectrum of light. Each element or molecule absorbs and emits light at specific wavelengths, leaving unique signatures in the spectrum. By comparing these signatures to known patterns, astronomers can identify the elements and compounds present in the object.
spectrocity...absorption of select frequency of light ie spectrocity
You can test the type of silver in a spoon by looking for markings such as "925" or "sterling" which indicate the presence of sterling silver. You can also conduct a magnet test - if the spoon is attracted to a magnet, it is likely not pure silver. Additionally, you can use chemical tests or seek professional appraisal to determine the silver content.
You can determine if something is made of gold by examining its color, weight, and density. Pure gold has a distinct yellow color and is very dense, so it feels heavier than similar-sized objects made of other materials. Another way to test for gold is to use a professional jeweler's acid testing kit or take the item to a jeweler for evaluation.
You can tell if something is made out of copper by its reddish-brown color and its high conductivity of electricity and heat. Additionally, copper is non-magnetic and is softer and more malleable than other metals like iron or steel.
To determine if a necklace is made of crystal, you can check for signs such as its high clarity, sparkle, and rainbow-like reflections when exposed to light. Crystals are also typically heavier than glass and can sometimes have natural imperfections. If in doubt, you can take it to a jeweler for a professional assessment.
When hydrogen burns, it combines with oxygen to form water (H2O).
spectrocity...absorption of select frequency of light ie spectrocity
blah blah black sheep
By using the habo space telescle to detect the object's velocity
What elements the star is made of.
"Redshift", which means that the frequency of the light as seen by us is LESS than the frequency at which it was emitted, tells us that an object is moving away from us.
Astronomers analyze the light reflected from comets with a machine, and can easily tell what major elements it is composed of.
SSo the astronomers can tell us what is happening to the sun. that good enough? :)
What makes up the star or element.
They get distant, but you have to see it.
Weight is due to gravitational forces between two objects. A single object inspace without another one reasonably nearby, or even in gravitational free-falltoward another object, is weightless. So you can not weigh an object in space.Determining the mass of objects in space is another matter.
One use of light spectra has an application in astronomy. When looking at distant objects like galaxies, you can tell if they are moving away from you or closer to you. If the spectral light appears blue (blue-shift) it means that the object is moving toward you, if the spectral light is red (red-shift) it means that the object is moving away from you. Another astronomy application is to look at the light from a star through a spectrum and by doing so you can figure out the chemical composition of the star just by the color of its spectrum.
The people you should ask are called astronomers who study astronomy.